This is the bunker i havent finished the large door on other end but it will have the same type of detials, after that need to do the more detailed stuff that will give it more grit like pipes dirt and destruction.

its pretty much done now im sad to say i had a budget issue over 400 on a grid and the dome had to sacrifice all of its panels. It worked out better i think because it lets more light into the dome and casts pretty cool shadows.